Although the two functional parts of the building, the southern and the northern body, are clearly distinguishable, the architectural language common for the two areas, both in terms of facades and in the performance of the roofs, gives the new APPM complex a unity and compactness that make it clearly independent of the context.

The atrium, with its strategic location within the building, in addition to having a properly functional role, in fact hosts the main vertical connections and internal horizontal connections, has the role of a semi-private collective space capable of representing a place of relationship, aggregation and fosters social interaction.